Narrow-leaf ironweed is an herbaceous perennial in the daisy family (Asteraceae) and native to the southeastern United States. It was first described by André Michaux in 1803. In nature, it occurs in sandy pine or mixed pine and hardwood forests, sandhills, along roadsides and in disturbed forest areas. The plant grows in clumps 2 to 4 feet tall and 1 to 2 feet wide in full sun to partial shade. It needs well-drained sandy soil and is drought tolerant once established. Deadhead to promote additional blooms and to decrease self-seeding if desired. Propagate by stem cuttings and seeds. In summer, clusters of magenta fluffy-looking flowers appear on well-branched, upright stems that are visited by multiple pollinators. The stems are clad in narrow medium to dark green leaves. Native bees nest in the dead, hollow stems, so gardeners are encouraged to cut back dead stems to 12 to 24 inches and allow them to remain standing until they disintegrate on their own. Read more about best practices for stem-nesting bees in this NC Extension publication . Use narrow-leaf ironweed in a meadow, woodland or other naturalized area. Plant it in the back of a border in a native, pollinator, drought-tolerant or rock garden. This is one of the 20 key pollinator plants that should be blooming in August for the Great Southeast Pollinator Census 2025. Insects, Diseases and Other Plant Problems: No significant problems.
Curated pairwise relationships between this plant and others in the library — who feeds
whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.
No curated interactions recorded for this species yet.
Also noted by NC State
Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell
apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.
Deep shade (Less than 2 hours to no direct sunlight) | Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt); Sand
Soil drainage
Good Drainage | Occasionally Dry
NC region
Coastal; Piedmont
Growth rate
Medium
Maintenance
Low
Canopy layer
4 - Herbaceous
Form & Appearance
Habit / form
Erect
Texture
Fine
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Filiform; Linear
Leaf margin
Entire
Leaf feel
Rough
Leaf size
3-6 inches long, < 1 inch wide
Hairs present
Yes
Leaf detail
Linear alternate leaves are medium to dark green.
Flower color
Purple/Lavender
Flower value
Showy
Flower form
Corymb; Panicle
Flower size
< 1 inch
Flower detail
Flower heads are arranged in corymbs. Each head consists of 9-30 purple disc flowers. Blooms from June to September.
Bloom time
Summer
Fruit type
Achene
Fruit detail
Displays from September to October.
Stem color
Green
Stem detail
Thick green stems with fine hairs are xylopodium, meaning that the stems are located underground and only the branches appear above ground. When young, the stems are striated with canals with hairs.
Wildlife & Ecology
Native status
Native
Origin
Southeast US
Distribution
AL, FL, GA, MS, NC, SC
Wildlife value
Flowers attractive to butterflies and bees. Members of the genus Veronia support the following specialized bee: Melissodes (Eumelissodes) denticulatus. Dead stems are used by stem-nesting bees.